Question

49

Replace multiple strings at once

rated 0 times [ 52] [ 3] / answers: 1 / hits: 193600 / 14 Years ago, mon, february 21, 2011, 12:00:00

Is there an easy equivalent to this in JavaScript?

$find = array(<, >, n);

$replace = array(&lt;, &gt;, <br/>);



$textarea = str_replace($find, $replace, $textarea);

This is using PHP's str_replace, which allows you to use an array of words to look for and replace. Can I do something like this using JavaScript / jQuery?

...

var textarea = $(this).val();



// string replace here



$(#output).html(textarea);

...

Answers

Only authorized users can answer the question. Please sign in first, or register a free account.

mckinleyk

Add To Favorites

Follow

Total Points: 730

Total Questions: 99

Total Answers: 99

Location: South Georgia

Member since Fri, Nov 13, 2020

4 Years ago

answered 14 Years ago harleyterryp · Accepted Answer

You could extend the String object with your own function that does what you need (useful if there's ever missing functionality):

String.prototype.replaceArray = function(find, replace) {

  var replaceString = this;

  for (var i = 0; i < find.length; i++) {

    replaceString = replaceString.replace(find[i], replace[i]);

  }

  return replaceString;

};

For global replace you could use regex:

String.prototype.replaceArray = function(find, replace) {

  var replaceString = this;

  var regex; 

  for (var i = 0; i < find.length; i++) {

    regex = new RegExp(find[i], g);

    replaceString = replaceString.replace(regex, replace[i]);

  }

  return replaceString;

};

To use the function it'd be similar to your PHP example:

var textarea = $(this).val();

var find = [<, >, n];

var replace = [&lt;, &gt;, <br/>];

textarea = textarea.replaceArray(find, replace);